//
//  HMMusicTool.h
//  04-黑马音乐
//
//  Created by apple on 15-3-29.
//  Copyright (c) 2015年 itcast. All rights reserved.
//

#import <Foundation/Foundation.h>
@class HMMusic;

@interface HMMusicTool : NSObject

/**
 *  返回所以的歌曲
 *
 *  @return 所以的歌曲
 */
+ (NSArray *)musics;

+ (void)setPlayingMusic:(HMMusic *)playingMusic;
+ (HMMusic *)playingMusic;

+ (HMMusic *)nextMusic;

+ (HMMusic *)previousMusic;

@end
